Flight Instructor for Powered-Lift Category › III. Preflight Preparation › Task C. Weather Information

IL.III.C.K1d

Knowledge

Acceptable weather products and resources required for preflight planning, current and forecast weather for departure, en route, and arrival phases of flight such as:

Graphical Forecasts for Aviation (GFA)

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Study note

Get a short, cited explanation of this element written from the FAA handbooks: the core idea, the numbers that matter, common test traps, and a quick self-check.

From the FAA library

Aeronautical Information Manual p. 7-1-6
Chapter 7. Safety of Flight › Section 1. Meteorology › 7-1-4. Graphical Forecasts for Aviation (GFA)
Graphical Forecasts for Aviation (GFA) a. The GFA website is intended to provide the necessary aviation weather information to give users a complete picture of the weather that may affect flight in the continental United States (CONUS). The website includes ... thunderstorms, clouds, flight category, precipitation, icing, turbulence, and wind. Hourly model data and forecasts, including information on clouds, flight category, precipitation, icing, turbulence, wind, and graphical output from the National Weather Service’s (NWS) National Digital Forecast Data (NDFD…
Aviation Weather Handbook p. 3-6
3 Overview of Aviation Weather Information › 3.3.3 Self-Briefing › 3.3.3.4 Weather.gov
major aviation weather website for obtaining text and graphical preflight weather information and products. 3.3.3.3.1 Graphical Forecasts for Aviation (GFA) Tool The Graphical Forecasts for Aviation (GFA) Tool is a set of web-based displays that provide the necessary aviation ... aviation are included in the NDFD. However, be aware that the NDFD may provide different forecast information for the same location and time than the GFA. For further information about NDFD, please contact National Weather Service - Graphical Forecast…
Aviation Weather Handbook p. 28-2
28 Aviation Weather Tools › 28.2 Graphical Forecasts for Aviation (GFA) Tool
Built with modern geospatial information tools, users can pan and zoom to…
Aviation Weather Handbook p. 27-68
28 Aviation Weather Tools › 28.1 Introduction
This forecast is also available at phone number 636-441-8467 ext. 5. TES 28 Aviation Weather Tools 28.1 Introduction The fifth of five types of aviation weather information discussed in this handbook is aviation weather tools. Aviation weather tools ... coming years as technology improves. Users will find information on any enhancements on the providers’ websites. 28.2 Graphical Forecasts for Aviation (GFA) Tool The GFA Tool is a set of web-based displays intended to provide the necessary aviation weather…